源码如下:
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8" />
<style type="text/css">
</style>
</style>
</head>
<body>
<h2 id="h2-caption"></h2>
<hr><br>
<form id="id-form-syninput">
<b>输入框1: </b><input class="input_1" type="text" name="input-syninput-1"/><br/>
<b>输入框2: </b><input class="input_2" value="@139.com" type="text" name="input-syninput-2"/><br/>
</form>
<br><hr>
<script src="./jquery-3.2.1.min.js" type="text/javascript" charset="utf-8"></script>
<script type="text/javascript">
$(function(){
$('.input_1').on('keyup',function(){
$('.input_2').val($(this).val());
});
});
$(".input_1").on('blur',function(){
var temp_houzui = "@139.com";
console.log("11111111");
var temp_poem = $('.input_1').val() + temp_houzui;
$('.input_2').val(temp_poem);
})
</script>
</body>
</html>